Closure for vessels



June 1.4 1927. 1,632,031

A.MAUsER CLOSURE FOR VESSELS Filed Nov. 6, 1924 Wl TNESS 4 TTURNEYS Patented 14, .1927.

UNITED `STATES I t 1,632,031 Pai-ENTv oFFicE.

AIJONB IAUSEB, I OOLUGNEIABIENBUBG,'GIBILIY.

i cnosunn ron vnssnrls.

Application Bled Novemberv 6, 1924, Serial Io. 748,082,2and in Germany Inch. 80, 19M.

My invention relates to closures for vessels y and particularly for metal receptacles and has especial reference to that type of closure in which there is employed a lockin lring consistingof an angular piece of arc ed or circular form engaging the marginal portion ofthe cover proper. Such locking ring is adapted to press with a wedge-like action against the cover and against an annularabutment located at the edge portion of the receptacle at a certain distance from the cover.

My present invention has .for its object tov improve closures of thecharacter indicated above Iand toaprovide a very efficient novel construction of this type including means for supporting and holding the locking ring in its locking position and forV also securing a packing or gasket in position and for preventing spreading or displacement of said.

packing.' Y

'Four different forms of'my invention are illustrated'in the accompanying drawings as examples of the many forms in which my invention may be embodied.' Fig. 1 is a lan view, partly in section, of one form o my invention; Fig. 2 is a section on line 2-2 of Fig. 1, and Figs. 3, 4, and farefragmenf tary sectional views illustrating three other forms of my invention.

yThe receptacle A, which may be of any conventional or special shape, is constructed of suitable material,such as sheet metal and has' its sidewall 10 connected by means of a lapped or folded oint 11 with a cover 'seating ring 12. In t e form shown in Figs. 1 and 2, the cover seating ring `is constructed of sheetmetal bent to form a step-like'crosssectionhaving a higher supporting surface 40' 13 and a lower supporting vsurface 14, which surfaces serve respectively for supporting a locking ring and a packing presently to be described. An outer ring 15 which encases the joint 11 extends over the higber'surface 13 and has a portion of its upper horizontally extending. flange 16 spaced therefrom to provide a channel 17 'in which' a portion of the ylocking ringis adapted to be inserted.

The locking ring 18 is constructed of sheet metal and consists of a -plane horizontall extending flan e 19 adapted to be 'secured' in the channel 7 and a c lindrical ange 20 extending downwardly om said lhorizontal fiange `at the inner edge thereof.

The locking ring is split as indicated at 21 extending wall 27 of the cover seating ring.-

in Fig. 1 to permit it'to be-gradually insertedin position and also to provide it with the required resiliency; it being understood that the diameter of the ring is so ,proportioned that when not in position upon the receptacle, the split ends thereof will spread andcause the ring to assume a larger diameter than when it is locked in position upon the receptacle.

The cover 22 of the receptacle is formed with a raised marginalrtion, which in' the constructional examp e illustrated, vconsists of an upwardly extending cylindrical flange 23 'having at its upper edge a horizontal marginal flange 24. An annularre, cess 25 is formed at the base of the c lindrical flange 23 to receive the lower en of the cylindrical flange. 20 of the locking ring 18; the' inner wall 25a pf the said recess forming an abutment to prevent inward radial movement of the locking ring to an extent which would -permit disengagement thereof from the channel 17..

A packing 26 of any suitable material and preferably of annular shape is adapted to be seated upon the lower surface 14- of the cover seating ring; when the. parts of the closurev are assembled, the packing is conned in a vertical direction between the marginal flange 24 of the cover and the lower surface 14 of the cover seating ring, while spreading of the packing in a horizontal direction is prevented by the vertical cylindrical flange 23 of the cover and the upwardly In assembling the closure, the packing is placed upon the lower surface. 14, 'after' which the'cover 22 is placed position, 'with 'the marginal Han 'e 24 thereof upon the packing.A The locking ring 418 isthen placed in its position with itsflanges 19 and 20 engaged within the channels 17 and 25' respectively. In inserting the locking rmg, one end of the flange l19 is inserted within the channel 17. and the ring is forced gradually into position therein by the use 'of a suitable tool`; the tool being moved around the circumference of the ring until the other end thereof snaps into locked position. In order to facilitate the insertion of the locking ring, the vertical flange 20 thereof is cut away a. short distance from the split ends. For convenience in removing the ring, a slot `28 is cut into-the horizontal flange 19 adjacent to one of the ends of the l lll ference of the cover seating ring instead of ring, said slot extending inwardly from the outer edge of the ring-a suilicient distance for the inner edge of the slot to be exposed beyond the flan e 16` to permit the msertion of a tool or springing the ring inwardly to unlock it. I

The construction illustrated by Fig. 3 is of the same general character as the one described with reference to Figs. 1 and 2, the difference being` chiefiy inthe shape of the( cover seating ring 12 which .is shown as provided with an annular upwardly pro- `jecting ridge 27a provided for the purpose of stiil'ening. said ring and for cooperating with the vertical flange 23 of the cover to prevent spreading of the packing. The upper face 13a of the ridge 27* corresponds to the upper supporting surface 13 of the cover seating ring shown in Fig. 2; said face cooperating with the flange 16a of theV outer ring 15a to define a channel corresponding to the channel 17, in which the horizontal flange 19 of the locking ring engages, and the lower surface 14a v serving as a support for the packing 26.

While in Figs. 1, 2, and 3, the cover seat-- ing ring is located within the mouth of the receptacle, Figs. 4 and 5 illustrate constructions in which such seating ring is disposed exteriorly of the receptacle and surrounds the same at the mouth. In Fig. 4 the cover seating ring 12b is of angular cross-section, having a vertical cylindrical member 27b on the upper face 13b of which Athe horizontal flange 19 of the lockingl ring. is'seated; the face 13b cooperating with the flange 16b provided at the upper end `of the outer ring 15b to `define the channel 17b inv which flange 19 engages. The side wall 10 of the receptacle engageswith the inner circumforming a lapped joint with the outer part ring, asshown in Figs..2 and 3.. In

tially the same as in Figs. 2 and 3.' Instead of the angularformation of the cover seating ring shown in Fig. 4, I may ern-- oy a ring having a U-shaped Vor semicircular cross-sectional profile.

In Fig. 5 a one artcover seating ring 12* of suitable profile is emplo ed which is illustrated as a massive bod ofY considerable thlclmess, which is true also of the cover .seatmo' ring 12b of Fig. 4, although I might, instea of this, in both instances, employ a. ring made of sheet metal. If desired, an outer ring such as indicated by the reference character 15 may be added in order to increase the .'ssecuritj7 of the closure., In this form, the channel 17,ffor the accommodation of the flange 19 of the Ylocking ring ps2 formed entirely in the cover seating rlng f Inorder that the side wall 10 of the receptacle may be --connected with the cover the v seat ring in such a manner as to prevent` ring. Such a connection or fastening may be considered the equivalent of one obtained 'by screws, bolts, interlocking projections,

and recesses or of one welding. y

` In each of the forms of my invention illustrated, the locking ring is identical, being obtained by electric constructed of sheet metal and split as indicated at 21 in Fig. 1 to enable it to be sprung into locked position, said ring pos'- sesslng an inherent resiliency tending to ex-y pand the same and cause it to hold itself securely in said locked-position.` It will be noted that in all forms ofthe invention, the outeredge of the horizontal flange 19 of the locking ring is supported upon a horizontally extending-higher surface 13, 13, 13b, etc. of the cover seating ring, which surface cooperates either with the iiange 16 of the cover seating ring to define a channel in which said flange 19 is engaged to prevent canting of the rin or said channel is formed directly in t e ring as indicated by the reference character 17 c vin Fig. 5.

While I have shown these higher surfaces 13, 13a, 13", as continuous, it willbe understood that an interrupted series of lugs or x abutments would be the fullv equivalent. Likewise. while the recess 25 of the cover has been shown as a continuous. annular groove, the substitution of a series ofl upwardly for preventing lnward -movement ofv the locking ring would be the ,same in principle as the provisionof the recess. It will also be noted that in all the examples of construction herein illustrated, I have resorted tothe principle ofconfining the packing 26 tween a pair of substantially vertically extending' walls toprevent spreading of said ,packing in a horizontal direction.

I claim:

1. A .closure of the class described,com prisikng a cover having la raised marginal portlolr and an abutment spaced interiorly of said portion, a. cover support located at the mouthof the receptacle and having a air of horizontally extending, upwardly acing, annular supporting surfaces, .ar-

ranged one above the other in vstepped concentric relationship, packing interposed between the marginal and the lower of sai surfaces, and a onepiece, resilient, split lockingring of angular crosssection having an u per member engaging the higherI of said) surfaces, and a lower member extending into the space between said raised marginal portion'and said abutment of the cover.

v 2. A of the class described, com-- projecting lugsl to form abutments (portion of said cover groove ofthe cover.

prisin'g a, cover` having an upwardly o en annular groove, a cover support locate at the mouth ofthe receptacle and having al pair of horizontally extending, upwardly facing, annular supporting surfaces, arranged one above the other in stepped concentric relationship, packing engaging the cover and the lower 'of said surfaces, and a one-piece, resilient, split locking ring of angular cross section having an up er member -engaging the higher of said sur aces, and a manently associated with said cover seatt ,said channels.

form with the upper of said surfaces IVa horizontally extending annular channel and a one-piece, resilient, split lockino' ring having a vertical flange to engage Wit in said vertical channel and a horizontal flange to 'engage within said horizontal channel.

' 4. A closurejof the class described coinprising a cover seat and a cover, said cover i aving a vertically extending Bange, a hori^.

zontally extending marginal portion, and an abutment spaced from said vertical flange to Ideine therewith a vertical channel, said cover seat having a pair of horizontally-extending, upwa'rdly facing, annular supporting surfaces, arranged one above the other in stepped concentric relationship,l means permanently associated withksaid cover seat to form with the upperof said surfaces a" horizontally extending annular channel and a split lockin ring having a'vertical flange to engage wit 'n said vertical channel and a horizontal '.iiange to enga Awithin said horizontal channel, .said l ing ring-being of resilientlmaterial and .constructed and. ar

ranged to be sprung into' engagementwithin A closurefof the class described 'cornprising .a cover-seat Land a cover, said cover havin `a. vertically extending flange, a hori zon y'exteidin marginal portion and an` abutment spaced 4in stepped concentric (relationship, means permanently associated with said'- lcover :seat

to formA withthe .upper of -s'aid surfaces" a said cover and within sai mzsaidvertical'iian'geto o define therewith 5.afvertical ,channel, said covei' seat having` a iiir uof horizontally extending', upwardly acing, annular 'supporting lsurfaces,.arranged one abovewthe` otherretaining member.

'alocking ring having a vertical flange t0 engage within. said vertical channel and a horizontal flange to engage within said hori-* zontal channel, the fla es of said cover and the lower surface of said cover seat cooper- `ating to form an annular chamber and a packing contained within said cham er. i

' 6. A closure of the class described comrising a cover seat and a cover, said cover aving a vertically extending flange, a horizonta y extendin marginal portion and an abutment spaced rom said vertical iian e to deiinevtherewith a vertical channel, a orizontal inwardly extending Vflange perma-l nently associated with said cover seat and a locking r-ing having'a vertical iange to enage within 'said vertical channel and a orizontal iange to engage with said first named horizontalilan e. 7. A closure for s eet metal receptacles 'comprising a Vcover seatfhaving a `pair of annular, horizontally extending, upwardly facing, supporting surfaces arranged in stepped concentric relationship with a vertically extending surface connectin them, a. cover having an annular vertical gauge and Van annular marginal flange projecting, outwardly -f rom'said vertical flan e, said vertical flange being adapted to inner peripheryof the lower osaid pair of surfaces, the lower horizontal surface and thevertical surface of said cover seat, and the flanges of said cover formingthe walls of an'annular chamber, a packing mounted on the lower of said surfaces between the walls of said chamber, means permanently associated with the upper of said surfaces to vdefine therewith an inwardly open horizontal channel, and locking means engaged tal iiang of said cover to hold said cover securely in en agement with saidnpacking cover seat. f

t within the within said channel and with' said horizon- .8. In a barrel, drum, or the like container.,

having a mouth, a cover for said mouth, fa v cover support fixed tothe container radja- 'cent said mouth, a cover-,retaining member engagin said su port and said cover, and. an annu ar secu g member engaging said coverretaining member-tdZ prevent vertical movementn thereof.

`9. 'A barrel, drum, or the like container, comprising'a sheet-metal body'portion with an openingat one end thereof, a .cover port' fixed to saidJbody portion adj acent said f opening and adapted Ato support said cover in operative position, vla'resilient cover-retaining vmember engaging said support and adapted to close said opening,' a cover sup I {,said'co'ver, and a securing `member iixed to i said body `portion and engaging said cover- 

